Abstract：A novel Beta-zeolite/carbon nanocomposite membrane has been prepared on a porous α-Al2O3 substrate by dip-coating. By single component gas experiments at room temperature, the Beta-zeolite/carbon nanocomposite membrane exhibits hydrogen permeations that are one order of magnitude higher than pure carbon membrane with comparable permselectivities. It shows that Beta-zeolite acts as high gas permeable phase in membranes. From the SEM images, when the amount of Beta-zeolite is increased, the thickness of nanocomposite membrane is reduced from 14 mm to 7 mm, which is helpful to decrease the resistance of gas permeance. Finally, the pathway through nanocomposite membrane is inferred by the experimental data and SEM images.